*{
    background-color: rgb(0, 255, 255);
}
.new-title{
    text-align:center; 
}
p{
    text-indent:2em;
}
img{
    width: 320px;
    height: 240px;
}
div{
    display: flex;
    flex-direction: column;//主轴设为侧轴(竖向显示)
    align-items: center;
    video{
        width:320px;
        height: 240px;
    }
}